I've never played the original version, so I have nothing to compare this one to, but what I can say it's that this is a very sweet game, with a very interesting melancholy feeling to it, I've really enjoyed playing it so far!
At this point, I did two endings, both good, but I was wondering if one character could have more than one good ending, or if they all had one good and one bad, or even something different?
The art is not exactly my style, but it's pretty enough and fits the story - it's honestly a matter of tastes here. Though I would suggest you offer the option to play without animations, if you make any updates or for future games - old or very weak computers may slow down because of that, and some players (like me haha XD) can be easily distracted when the sprites move so much. On the other hand, I've really enjoyed the BG art, and the music choices were really nice - really helped in conveying the mood and feelings!